Paul Hodes (D): 40%
John Sununu (R): 34%
The results are based on 558 completed telephone interviews among a statewide random sample of registered voters in New Hampshire.
Of the 558 interviews, 150 were among Republicans, 174 Democrats, and 234 undeclared voters. The interviews were conducted June 27 through 29, 2009.
The theoretical margin of error for the sample of 558 registered voters is plus or minus 4.2 percentage points, 95% of the time, on questions where opinion is evenly split.
http://americanresearchgroup.com/nhpoll/senate10/